剪切、挤压变形应力分析探索

A Study on Stress Analysis of Shear and Extrusion Deformation

在目前材料力学课程的教材和教学中,对剪切与挤压变形的应力分析一般只做简单的陈述,便引出了剪切与挤压变形的剪切面和挤压面上的切应力和挤压应力的近似计算公式,即实用计算法。按照构件变形应力的一般研究方法从几何关系、物理关系、静力学关系三个方面对剪切、挤压变形进行应力分析,得出剪切、挤压应力的计算公式,对于一般教材和教学中采用的剪切、挤压应力的实用计算法的讲解是一个理论上的补充,有利于学生掌握和理解该内容。

At present in the course of materials mechanics and teaching materials,Stress analysis of shear and extrusion deformation is generally only a simple analysis of statements,The approximate calculation formulas of shear stress and extrusion stress on the shear and extrusion deformation shear plane and the extrusion surface are derived,namely the practical calculation method. In this paper,stress analysis of shear and extrusion deformation is carried out from geometrical,physical and static relations according to the general research method of deformation stress,and the formulas for calculating the shear and extrusion stresses are obtained. The general teaching materials and teaching used in the shear,extrusion stress practical calculation method is a theoretical supplement to help students master and understand the content.